Katie Holmes was glowing as she stepped out with her mother, Kathleen Holmes, for the American Ballet Theater Spring Gala in New York City.  The actress turned heads in a white two-piece ensemble consisting of a spaghetti-strap top with a structured, voluminous overlay, and a matching textured skirt. She added strappy heels, a sparkling necklace and chunky earrings to complete the look, and wore her brunette locks in subtle waves. Her mother looked beautiful in a golden gown with intricate black detailing and puffed sleeves, and she paired the look with a black handbag and black flats. This marks a rare appearance for Kathleen, who last attended the gala alongside her husband, Martin Holmes, and her daughter in 2024.  © WWD via Getty ImagesKatie is Kathleen’s youngest child Katie is incredibly close with her mother, and shared a sweet birthday tribute to her in September 2024. “Happy Birthday Mom! I love you so very much!” she wrote in the caption. “A very happy birthday to my incredible mom. I am so very lucky to be …